Cash register



March l, 1932. kw- KROPFF 1,847,532

' Y CASH REGISTER Filed Sept. 7, 192B 8l v 32 o f3 L. O'

. B Wilhem y vl46 M Patented Mar. 1, 1932 i UNITED STATES PATENroFl-ICE WILHELM Knorrr, or Y isnamNscHAaLor'raNBURG, GERMANY, AssIGNoR 'roY `THE lNATIONAL c AsH anatema coMrANinoi1 DAYTON, omo, A CORPORATION or MARY- y LAND j j Application filed September?, "1928,.Seria1,No.

This invention relatesto-cash registers and likemachines, and is more particularly directed to improvements in releasing lkmechanisms for the cash drawers usually associated with such machines. Y

The invention isy conveniently applied to a cash register of a wellA known type,such, for instance, as is disclosed in Letters Patent of the United States, Nos; 751,611, and 77 3,053, granted on February 9*, 1904 and October`25, 1904, respectively, to Thomas Carroll, and No. 1,360,151, granted November 23, 1920 to BQ M. Shipley. p 1 l Y y In earlier machines of the type disclosed in the above mentioned patents', the normally locked spring-pressed cash drawer was released'and propelled to an accessible position at each operation of the machine, regardless of the nature of the transaction. It has been found to bedesirable, when certain transactionsfare registered in the machine, to retain the cash drawer in its locked or inaccessible position; for instance, on operations when a j trolled by a manipulative means, lthe adjustment of which determines the nature of the operation to be performed by the machine in accordance with the kind of transaction which is to be'entered.

With this and incidental objects in view, the invention includes certainnovel features of construction and combinations of parts, the essential elements of which are set forth in appended claims and a preferred form or embodiment of whichfis hereinafter' described with reference to the drawing which accompanics and forms a part ofthis specification.

The drawing represents a detail vertical sectional view taken to the left of the transac- CASH anersrnn 34,471,"and in Germany september 16, 1927.

closed in the Carroll and Shipley patents above referredto, andshowing the invention applied thereto. j Y l 1 y vMachinesof this type `are generally provided with manually adjustable setting levers 30, one of which is shown broken away-in the drawing. These levers are fastened to toothed segments 31, independently journaled on a rod or support 32extending between the side' frames 33 of the machine, one side frame only being shown. Adjustment of. any of the levers 30 in clockwise direction `from the zero positionin which it is shown in the drawing, causes teeth 34 on the mutilated segment 31 in mesh with a rack 35 on a verticallydisposed differentially adjustable slide 36, to raise said differentially adjustable slide a distance correspondingto the extent or arc of movement traversed by the lever 30. A spring-pressed aligning pawl 37 slidably 'mounted in alUv-A shaped tie bar 38, extending between the side frames 33 of the machine, coacts with the notched aligning plate 39, fast on the slide 36 to aline the slide and yicldingly maintain it in the postion to which it adjusted.

The levers 30 are adjusted to set up amounts to be Ventered in the machine, control the indicators and type carriers to indicate and print such amounts, and to designate the kind of transaction effected by eachoperation of the machine. j j

The particular lever 30 shown in the drawing is for the transaction bank, that is,the lever may be manually adjusted to any one of` a plurality of positions, each of which represents a transaction of a particularna- .ture which it is desired to indicateand record.

The adjustment of the lever 30 may set an indicator (not shown) to display the sym- A which to deposit the money received or from which to take the money to be paid out incident to certain of the transactions or sales.

In the type of cash register to which the invention is applied, the-cash drawer was latched in closed position against they tension of a spring, and was heretofore unlatched automatically and slid outwardly to its accessible position at each operation of the machine whether or not money was to be deposited therein or removed therefrom.

It is now proposed to control the cash drawer so "that the ydrawer will be released only on those transactions in which money is received .by the clerk to be deposited in the cash drawer, or on those transactions in which money is to 'be removed from, or paid out of the cash drawer, the drawer remaining latched on other operations not involving the `receipt or disbursement of money.

One convenient means t0 attain this result is as follows r:

The cash drawer is slidably mounted on rails (not shown) attached to tlhe inside walls of the enclosing cabinet, 'a fragment 46 of which appears inthe drawing. The lower end of a di'awer latch bolt Vor plunger i7 slidable vertically in a lchannelled tie bar v481ertending :between the machine side frames 33, projects into an opening in `a .keeper 52 secured to the 'rear-'end of the cash drawer 45, to normally hold the drawer in its locked or inaccessible position against the tension of a spring 69 secured to the rear end wall of the drawer Abetween which anda cup 570 fastened to thebacl-z `of the cabinet, the 4spring is com pressed whent'he Idrawer is closed. .A spring 53 coiled about the drawer latch bolt -47 and com-pressed between a stud 54 projecting laterally through the latch bolt :47 andthe web of the channelled tie bar 48, normally holds the `latch 47 in its lowermost position `where it is eiective to restrain the drawer 45. The upper end of the bolt, or latch 47, is pivoted to a stnd49 Von a radins arm 50 j'ournaled on a shaft 5l supported by and extending be tween the .side frames 33.

The toregoing construction is fold .in the art and `only forms la part of the present 'inn volition when combined with 4the new and nove-l elements new to be described.

As stated above, the principal object the invention is to control the drawer latching mechanism to .release `the cash-drawer `on een tain opera-tions Aonly and retain it latched on other operations, and as shown, this is yaccomplished .in the lpresent .instance by controlling the drawer :la-telling mechanism from the transaction .slide 36. To release the drawer 4:5, .-a disk (ill, the hub 6l of which is fast a drive shaft 62 ,journaled in the inne-bine side frames, carries an actuating stud 63 projecting laterally therefrom. The dnive shaft (i2 makes one counter-clockwise rotation :at-each operati-on of the machine.

A rcarmirdly extending release lever Gil is pivoted at .its forwardend to a stud on the transaction 'slide 846, .the Vlever resting near its rear end on the zhub 6:1 of the dish 60 and terminating in .atooth 59 lying beneath, yand in 'line witlnla shoulder'ii fom-1aed on the 11pper end of a lifter link 68, the lower end of which is pivoted on the saine stud 49 that connects the upper end of the bolt 47 with the radius arm 50.

A spring G6 extending between the release lever 64 and the slide 36 normally holds the free end of the release lever against the hub 6l of the disk 60.

A .spring 7l presses the upper end of the lifter link .68 .against .a guide rod 72 extending between the machine frames 38 to retain the link in a constant path of travel as it rises and falls with the plunger bolt 47 in releasing and locking the cash drawer 45.

The actuating stud 63 is normally located apart from the release lever '64 asnflicient distance to afford time for the machine `.to coniplete its various functions vbefore the drawer is released.

On operation of the machine with .the parts in the .positions `shown in fnll lines, the driving dish 60, 'on its connter-clocliwise travel, finally causes the actuating stud 6b to strike the lower edge Vof the rele lever 'Gil and rock the release lever clockw se Jabont its pii'ot 65 'against the tension of the restoring spring 66.. As the release lever travels clockwise, the free end thereof strikes the shoulder 67 on the lifter :link '68 yfand lift-s the link 68, thereby rocking the radins Varm 50 clockwise to lift the latch bol-t #i7 ont of .engagement with the keeper 52, whereupon :the sprl 69 expands and 'propels the drawer l5 out of `the cabinet Il@ to its accessible position.

.As soon as the actuating stud '63 haspas-ted from beneath the release lever (il, the spring restores the latter to its normal position resting on the hub 6l. and at the sanic time. the spring lowers the latch bolt or plnngm' l? into its normally effective position, that after the yopera-tion is completed and the operator closes the drawer, the keeper 552 on its b-aclrwzzzrd movement will strike a beveled edge ofthe latch bolt ZlT and cam the bolt upwardly until the `opening in the keeper 52 rcgsteis with the end `of the latch, whereupon the spring 53 forces the 'latch into the opening to thereby aga-in restrain the 4cash drawer in inaccessible position.

llefore the actuating stud 6? acts to roel? the release lever (i4, against the tension of the springs GG am it is necessary to positively loch the differential slide 36 against vertical movement, in order to retain "he pivot G5 of lthe release liever .in its adji fl position, and the spring-pressed ali rner pawl :h normally: bold s the differential slide l ng'ly in adjusted position., readilyY lent... f Aself for use in preventing yaccidenla.` displa nient of the slide during the operation of the machine. The shaft (l2 by a train of .12s, 82 being .f` on shaft G9 orar jgonrnaled on a stud .in one of the side frames "'55, and gear 8l fast on shaft 8l., ro-

shaft 8l and with it, a locking 'd lates 80, at each operation of the machine. The. disk is ararnged with its periphery in the same vertical plane with and adjacent to the rear end of the aligner pawl 37 projecting through its supporting tie bar 38, thealiner pawl coacting with the aligner plate 39 on the differential transaction slide 36.

A recess in the periphery of the locking disk 80 normally occupies a position in line with the rear end of the aligner pawl 37 to permit free movement of said pawl toward the rear of the machine when the slide 36 is adjusted by the lever 30 and segment 31.

At the beginning of an operation of the machine, the drive gear 82 through its connected train of gearing rotates the shaft 81 and the locking disk 8O to shift the recess 85 of the disk out of line with the rear end of the aligner pawl 37 and present the unbroken surface of its periphery thereto, which,as reference to the drawing discloses, locks the aligner pawl 37 in the particular notchv in the aligner plate 39 in which it rests, thus locking the slide 36 against vertical movement and fixing the position of the pivot 65.

The drive shaft 62 imparts a complete rotation to the locking disk 80, so that at the end of the operation of the machine, the recess 85 is brought into line with the aligner pawl 37 to enable the transaction lever to be adjusted to any of its positions preparatory to the next operation of the machine. For convenience, the number of the positions to which transaction lever 30 and its slide 36 may be moved, is limited to four, as shown -in the drawing. The .slide 36 is shown in full lines in its lowermost position with the transaction lever 30 in its uppermost position. When the operator manually rotates the transaction lever 3() clockwise four steps or positions, the segment 31 raises the slide 36 until the aligner pawl 37 engages the lowermost notch in the aligner plate 39. As the slide 36 moves upwardly, it draws the release lever 64 therewith, and as the spring 66 continues to hold the lower edge of the lever 64 in contact with the hub 61, the release lever 64 is caused to turn counter-clockwise on its pivot 65 while, at the same time, its lower edge, held in contact with the hub 61 by spring 66, slides on the hub 61 to withdrawr the free end of the release lever 64 from beneath the shoulder 67 on the lifter link 68. When the slide 36 is lowered, of course, the movement of the re lease lever 64 is reversed. lThe release lever 64 is shown by dot and dash lines in the position it assumes when the slide 36 is moved to its uppermost position,

With the parts in the positions shown'in dot and dash outline, operation of the machine will cause the stud 63 to rock the release lever idly clockwise, the free end of the lever escaping the shoulder' 67 without raising the link 68 and latch bolt 47 to release the drawer 45, which remains locked and inaccessible, the

spring-66 restoring the release lever `64 at the i slide 36 in either of its lower two positions,

the free end of the release lever 64 will lie in position to operate the lifter link 68 and latch bolt 47 to rele-ase the drawer 45 to the action of its spring 69, but adjustment of the slidebeyond its'two lower positions will withdraw the release lever 64 to ineffective position.

It is possible to adjust the slide 36 to a point above itsA uppermost eective position'. If thiswere done, the spring 66 would rock the release lever 64 counter-clockwise far enough so that, when the slide was lowered, the free end of the lever would either wholly escape or else abut against the hub 61, thereby locking the slide against returning to any of its regularadjusted positions. To prevent-this, a

Y stop stud 86 projects laterally from the slide 36 in such' position that when the slide 36 is adjusted to its fourth position, the stud 86 lies in the path of and-prevents further counter-clockwise movement of the release lever 64 by the spring 66. j i

What is claimed is:

1. In a machine of the class described; the combination with a cash drawer; means to normally lock the cashdrawer in closed position; a diferentially settable element; and means to adjust said settable element to any of its positions; of a link connected toithe locking means; a release lever pivoted on the settable element and adjustable therewith relatively to said link to determine its ei'ectiveness and means to rock the lever to cause it to actuate the link to withdraw the latch and free the cash drawer, depending upon the adjustment of the dilerentially settable element. f

2. In a machine of the class described; the

lcombination with a cash drawer; meansto ing means to free the cash drawer.

3. In a machine of the class described; the combina-tion with a cash drawer; a latch to normally lock said cash drawer in closed position; a differentially settable slide; means to adjust said slide to any of its positions; and means to lock said slide against movement; kof a shouldered link pivoted to the ltchf; a rocker arm feo Wlii cli "the il ateli i and itlie linl: airebotli ipiaioteds; 1a ireleaseilevervpiafoted to and differentially positioned 'by the setn table slide relatively to ztlie shoulder .on ftlie y link, said 'lever being fadapted ito cooperate with .the vshouldered link in certain only of its positions; anda Itappet to lrook :the lever and cause lit to Withdraw the latch ito release the drawer.

'4. Ifnfa Imao'lmlne .of @the class described, .the combination Vwith Ia cash drawer; :and :means to :normally lot-'lr !tl1e drawer in Aits closed position; of means Connected with the drawer looking `means .to frelease tllie same; a device having a .Silii' ie pivot; and ra. iinovable snpport for the pivot, said support :adapted to control the pivot so that ithe device s adapted Eto :cooperate with .and voperate the drawer loelc ireleasing .means when the support is in one position, said device being rendered nefeotive relative to the drawer lool; releasing means when fthe support is in anotlier position7 the shifting movementiof vthe `pivot and the operating movement of itlie device being inthe same plane.

5. In ya .maehine'of the class described, the combination with a ycashaflrawer; and 'means to normally look the drawer in lits :closed position; of a releasing element connected to the drawer vlooking aneans; va release member to operate the lreleasing element; a slifiittable pivot for lthe lrelease member `to fbodily Shift tbe 1member into ei'eotive 'and -inellieetive .positions relatively .to the releasing element; :a movable support for the pivot; and means to shift the support todeterinine tlieeffeotivity of the 'release member, ythe movements of tlie=1=elease member and the sliiftab'le support being in tlife same plane.

In a maeliinefot the classdeec1'ibed,aeasl1 drawer, a l'oclr to normally hold the drawer in closed position, an element adapted to swing; about a pivot adjustable to a plurality of po.. "tion-s, the pat'li of 4adjustment of tlie pivot and the swinging 4movement of the element being in the same plane,.the vadjustment of the pivot beingl elfeetive to determine v-.Yliether the swinging movement of `the element W'ill be idle or will be eleetive to move the lock.

In testimony whereof I aliiX my sig-nature.

WILHELM KROPFF.

Leer/p82 

